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County · code 27059

Isanti CountyMinnesota

Isanti County is a county in Minnesota, with its seat at Cambridge, formed in 1857.

  • Founded1857
  • County seatCambridge
  • Land area436 sq mi + 16 sq mi water
  • Population41,135 2020 Census
  • Parcels mapped23,883 checked 16 October 2026
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Updated

AnokaKanabecChisagoMille Lacs Cambridge Census outline · seat marked

Where it is

Isanti on the map of Minnesota

Minnesota has 87 counties and county equivalents, each with its own records office. Shapes with a page are links.

Aitkin CountyAnoka CountyBecker CountyBeltrami CountyBenton CountyBig Stone CountyBlue Earth CountyBrown CountyCarlton CountyCarver CountyCass CountyChippewa CountyChisago CountyClay CountyClearwater CountyCook CountyCottonwood CountyCrow Wing CountyDakota CountyDodge CountyDouglas CountyFaribault CountyFillmore CountyFreeborn CountyGoodhue CountyGrant CountyHennepin CountyHouston CountyHubbard CountyItasca CountyJackson CountyKanabec CountyKandiyohi CountyKittson CountyKoochiching CountyLac qui Parle CountyLake CountyLake of the Woods CountyLe Sueur CountyLincoln CountyLyon CountyMcLeod CountyMahnomen CountyMarshall CountyMartin CountyMeeker CountyMille Lacs CountyMorrison CountyMower CountyMurray CountyNicollet CountyNobles CountyNorman CountyOlmsted CountyOtter Tail CountyPennington CountyPine CountyPipestone CountyPolk CountyPope CountyRamsey CountyRed Lake CountyRedwood CountyRenville CountyRice CountyRock CountyRoseau CountySt. Louis CountyScott CountySherburne CountySibley CountyStearns CountySteele CountyStevens CountySwift CountyTodd CountyTraverse CountyWabasha CountyWadena CountyWaseca CountyWashington CountyWatonwan CountyWilkin CountyWinona CountyWright CountyYellow Medicine CountyIsanti County Isanti
Counties of Minnesota · Isanti highlighted

History

Formed in 1857 from Ramsey County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Isanti County was created from Ramsey County on February 13, 1857, and organized for county government. The county was temporarily attached to St. Louis County in 1858 for judicial purposes, then transferred to Anoka County in 1860, before becoming fully organized and independent in 1871.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1857
    Isanti County created Isanti created from Ramsey; Isanti organized for county government.
    from Ramsey
    · Minn. Terr. Laws 1857, ch. 70, secs. 1, 3/pp. 267-268
  2. 1858
    Changed Monroe (proposed) authorized to be created from Benton, Isanti, and Mille Lacs, dependent upon local referendum that failed; county never created.
    MonroeBentonMille Lacs
    · HRS Minn., Mille Lacs, 9-10; Minn. Laws 1857-188, spec., ch. 33, secs. 1-3/pp. 143-144
  3. 1858
    Changed Isanti attached to St. Louis "for judicial and other purposes."
    St. Louis
    · Minn. Laws 1857-1858, gen., ch. 67, sec. 2/p. 157
  4. 1860
    Changed Isanti detached from St. Louis, attached to Anoka "for judicial purposes."
    St. LouisAnoka
    · Minn. Laws 1859-1860, spec., ch. 65, sec. 1/p. 107
  5. 1871
    Changed Isanti fully organized, detached from Anoka.
    Anoka
    · Minn. Laws 1871, gen., ch. 79, sec. 1/p.142

Land and parcels

What the maps cover in Isanti

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Isanti by the Census

Population
41,135 2020 Census count
Housing units
16,550 2020 Census count
Land area
436 square miles
Water area
16 square miles
People per sq mi
94 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Isanti County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

Open Isanti County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

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Questions

Common questions about Isanti County

When was Isanti County founded?
Isanti County was founded in 1857, formed from Ramsey County.
What is the county seat of Isanti County?
The county seat of Isanti County is Cambridge.
Is there an online parcel map for Isanti County?
Yes. Minnesota Geospatial Commons publishes a parcel map of 23,883 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Isanti County's boundary or name changed?
Isanti County was created in 1857 from Ramsey County. Since then the Atlas of Historical County Boundaries records 3 later changes, chiefly involving Anoka County and St. Louis County.
Is my lot in a flood zone?
We do not have flood maps for Isanti County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door